Lessons from Master Clinicians: An Interview with Dr. Gail Kerr Jason Liebowitz, MD, FACR | Issue: August 2019 | August 16, 2019 Jason Liebowitz, MD, recently completed a fellowship in rheumatology at Johns Hopkins University, Baltimore, where he also earned his MD. He completed his residency at Johns Hopkins Bayview. Page: 1 2 3 | Single Page Share: